What amazing forceful photos. This little station is a gem. I frequently try to shoot less used rail heads and abandonded RR buildings in urban hubs but often get run off by the "Railroad Dicks" as Woody Guthrie might say. Can you give me a brief idea of how you post processed?

Chrome, in answer to your question re the processing. Nothing too complex - all adjustments done on a single layer.
First two with sky I had a GND filter on the camera to maintain cloud detail (it was around midday, so very bright) . #1 also had a slight perspective correction to straighten the walls

I edit with Paintshop Pro (which unfortunately doesn't yet have Silver Efex plugin) - after adjusting contrast & levels in colour, I use PsP's 'Black & white film' conversion - using a red filter setting (red seems to keep the sky darkest) .
Once in mono, I tweak the levels (highs & mids) again to get the look & feel I want - and uses some slight tone mapping to make the detail pop.
Other individual tweaks include vignette & burning on #1 mainly to tone down the suburbia in the background.
The railway wagon shot went a little differently to the others - I had blown highlights in the middle, so ended up processing very dark & contrasty to give an apocalyptic feel to it.